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Vehicle stability control system and method

  • US 8,532,906 B2
  • Filed: 02/08/2012
  • Issued: 09/10/2013
  • Est. Priority Date: 01/23/2008
  • Status: Active Grant
First Claim
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1. A method for maintaining a driver'"'"'s selected speed of a vehicle during hill driving, the method comprising:

  • receiving signals corresponding to a lateral acceleration, a longitudinal acceleration, a yaw rate, a roll rate, and a pitch rate with a stability controller;

    calculating a vehicle pitch angle from the lateral acceleration, the longitudinal acceleration, the yaw rate, the roll rate, and the pitch rate with the stability controller;

    calculating a longitudinal velocity gradient from the vehicle pitch angle with the stability controller;

    determining whether the longitudinal velocity gradient is substantially close to zero with the stability controller; and

    issuing a signal from the stability controller to change a throttle input of the vehicle to change the vehicle'"'"'s velocity if the longitudinal velocity gradient is not substantially close to zero.

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